Cylinder-mounting for printing-presses.



G. A. FRIESS.

CYLINDER MOUNTING FOR PRINTING PRESSES.

APPLICATION FILED APRA, 191s.

15%?,7 749 Patented May 29, 1917.

2 SHEETS-SHEET I. 5

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CYLINDER MOUNTING FOR PRINTING PRESSES.

APPLICATION FILED APRA. Isle.

lpg'gbg Patented May 29; 1.917.

2 SHEETS-SHEET 2.

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CYLNDlER-MOUNTING. FOB PRINTING-PRESSES.

Specification of Letters Patent.

Vratenten May ea, tera.

Application met aprire, 191e. seriai'no. eases.

To all 'whom t may concern:

Be it known that ll, GUs'rAv. A.' lFRrEss, subject of the Emperor of Germanygresiding at Chicago, in the countyA of Cook and State of lllinois,-have inventedcertain new and useful Improvements in Cylinder- Mountings for Printing-Presses; and li do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. v Y

rlhis invention has for itsob'ject to provide certain new and useful improvements in printing presses and more particularly in so-called cylinder-presses in which the printing is done' by means 'of a cylindrical plate carrying the type, cuts and the like, from which impressions are to be vmade durA ing therotation of said cylinder, and which is mounted on the printing cylinder in the shape of a jacket. f

The particular object of the present in-` vention is to .provide a mounting for the printing cylinder of a press which will permit said cylinder to be tilted to a position permitting the plate or jacket to be removed or mounted without removing the cylinder from the press, or in any manner al'ecting.

the adjustments of said cylinder and the bearings therefor.

lln the accompanying drawings illustrating a suitable embodiment of the invention: Figure -l-J- is a fragmentary vertical transverse section through the frame of a cylinderprinting press and printing cylinder thereof showingthe mounting for said cylinder whereby tilting of the same is permitted. f f j Fig. 2Q-is a fragmentary vertical longitudinal section on the line 2-f2 of Fig.

llig. -3- is a detail vertical transverse section on the line 3-3of Fig. `-2-.

rlhe frame of the printing press is pro-. vided on opposite sides with housings A for the bearings for the trunnions of the cylinder B.v .Cnc of thetrunnions C journaled in lsaid bearings is annularly reduced and receives a collar B between which and an opposed shoulder abushing 'll is received, the latter being providedwith run-ways for balls interposed between the same and al companion bushing U in a beari.ng member. The latterv consists of a split cylinder F, the

outer circumferential face 'of which iseccentric to its inner circumferential face. rllhe said member l1" is rotatably mounted in the bearing D consisting of the usual separable members secured together by means of bolts E passing through lianges G thereof.

The said housing A for the said bearing D is provided with a recess K, having parallel flat side walls H between which the ends of the flanges .G of the bearing D are confined, said bearings D for bothends or trunnions of the cylinder B being thus vertically and horizontally movable in said housings A in an obvious manner.

The bearings D for the trunnions C of the cylinder B are provided with diametrically opposite projections M, one of which rests in a block C vertically movable in a recess N in the Abottom Wall of the recess K, and which Vis supported upon the set-screw B. rlhe other of said projections kM of each bearing is similarly engaged by a similar block C mounted in the cover member Q for the recess K, and which is adapted to be adjusted by means of another set-screw l?. rlhe outer ends of said projections M of one of said bearings D are` sphero-convex and the opposed surfaces of the blocks vC receiving same are sphere-concave, the radiusv of. said surfaces `being coincident with the axis of the bearing D and a transverse horizontal axis intersecting the first-named axis midway between the ends of said bearing D. By

the engagement of the opposed concave and convex faces of the blocks C and projections M respectively, the said bearing D is held` against longitudinal movement in the direction of the axis of the cylinder B, and by the engagement of the ends of the flanges Cr- `With the side Walls of the recess K the bearing D is held against lateral movement in said recess K, as will be obvious.

' 'llhe eccentric mounting of the trunnions A i of the cylinder is similarly constructed, ex-

cept that the projections M thereof have flat end surfaces, the said projections being received in theflanged cups of the blocks W for holding said bearing against movement relatively to the press-frame in one direction.

rlhe cover member for the bearing for the last-named trunnion of the cylinder is bolted in place, and is adapted to be removed whereupon the last-named bearing is adapted to be lifted out of its recess or housing Without removing the same from the trunnion of the cylinder on which it is mounted, and said cylinder may thus be tilted, as

shown in dotted1 lines in Fig. -1-, on the horizontal axis midway between the spherical surfaces of the projections M of the :other bearing, and which extends transversely to the axis of said cylinder.

rlhe vdrive-gear Y for the cylinder is mounted on that trunnion which is journaled in the tiltable bearing and between the end of the cylinder and the inner face of the housing for said bearing. l

The printing plate or jacket Z for the cylinder B is provided at its ends with in' clined surfaces I, one of Which is adapted to bear upon the vopposed surface of an annular flange J at the end of thecylinder nearest the tiltable bearing for one trunnion thereof. The said surface I at the other end of said jacket Z isadapted to be engaged by the similar opposed surface of a v ring or collar L telescopically movable over ing the cover for said housing, the cylinder Will'again assume its normal operative position. lf a new jacket Z is mounted on the cylinder adjustment of the latter may be easily eected after the same has been re- Z. Obviously by tilting'V placed as aforesaid, by manipulating the By means of this arrangement much time and labor in and about the removal and replacement of the jackets .Z is economized. Y

lf claim as my invention:

l. In a printing 'press having a cylinder adapted to receive removableprinting jackets, a bearing for a trunnion of said cylinseveral set-screws l? in an'obvious-mannenr der mounted'to rock on an axis transverse to the axis of rotation of said cylinder, the trunnion of said cylinder journaled insaid bearing being engaged against longitudinal movement relatively thereto, a bearing for the other trunnion of said cylinder removably mounted in a housing and adapted to be lifted out of the same as the cylinder is tilted for mounting and demountingthe printing jacket thereof. i,

2. In a printing press having :a cylinder adapted to receive removable printing jack? ets, a housing for the bearing for one' trunnion of said cylinder having parallel side'- walls between' Whichsaid bearing is held against lateral movement, an adjustable sup- 'y I port for said bearin in the bottom of said housing, an adjustab e member in the top of said housing coacting With the adjustable support to holdsaid bearing against vertical movement, the opposed faces of. said support and said member and the coperating faces of said bearing engaged thereby having a curvature of the radius ofthe distance of said faces from the axis of rotation of 'l said cylinder to permit the latter to be tilted on an axis transverse t0 its axis of rotation. l

`l[n testimony whereof I` have signed myI name in presence of tWosubscribing Witnesses.

y cnsfrav A. reines;

"Witnesses:

' M. M. Bom,

lnvnve Cov/LES. 

